A reverse like-kind exchange (called a reverse Starker exchange) involves the purchase of replacement property by a taxpayer before the sale of the original property.In Rev.

This will not only let you sleep well at night but also enable you to properly manage the investment I.E. repairs, replacement, etc when needed.

They're good because we can easily replace a damaged one.

Understand that it may be difficult for the tenants to find replacement housing, and especially with government subsidies playing a role, you may allow them a longer-than-average time to find new housing. 

Assume the roof needs replacing, plumbing leaks everywhere, there are no appliances, no heat...

I replaced the toilets, vanities, medicine cabinets, vanity light in the bathroom.

The number of replacements does not natter either. 

Learn all the stuff that goes into making a house function and what they cost to repair and to replace and their lifespans.

I understand COC but what if my goal is to replace my working income?

Fix vs replace something) and tenant advocacy/satisfaction (eg. run some kind of tenant satisfaction survey and give them a bonus for improvement or meeting a certain target)?